Feed-water heater



2 Sheets-Sheet L J. T. LEE.

FEED WATER HEATER.

(No Model.)

No. 393,375. Patented Nov. 27, 1888.

WITNESSES 7% 4% w (No MOdel.) 2 Sheets-Sheet 2.

J. T. LEE.

FEED WATER HEATER.

INVBNTOR: of

ATTORNEYS.

NITED STATES A'rsNr FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No.393,375, dated November 27, 1888.

(No model.)

To all whom it may concern.-

Be it known that I, JULIUS THOMAS Lnn, of Mattoon, in the county of Goles and State of Illinois, have invented a new and Improved FeedIVater Heater and Purifier for Locomotive-Boilers, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved feed-waterheater and waterpurifier in which the escaping smoke and gases of the boiler and the exhaust-steam of the 10- comotive-engines furnish the necessary heat.

The invention consists of a water-jacket diaphragm or heat-deflector held in the smokebox of the boiler and connected with an injector or pump, and of a water-jacket surrounding the stand-pipe and connected with the said waterjacket diaphragm and also with the interior of the boiler.

The invention also consists of certain parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal sectional elevation of the improvement as applied. Fig. 2 is a sectional end elevation of the same on the line 00 x of Fig. 1; and Fig. 3 is a like view of the same on the line 3 y of Fig. 1.

The locomotive boiler A, of any approved construction, is provided with the usual steamspace, 13, and the fines C, which pass through the flue-sheet D at the rear end of the boiler A, and open into the smoke-box E, carrying the usual smoke-stack, F. In the smoke-box E is secured a stand-pipe, G, of any approved construction, and connected in the usual manner with the cylinders HH of the locomotive engines. The stand-pipe G may terminate below the lower end of the smoke-stack F, or may extend into the latter to any desired height.

Between the stand-pipe G and the flue-sheet D is placed a transversely-extending waterjacket diaphragm or heat-deflector, I, secured by suitable means to the fiuesheet D and to the'shell of the smoke-box E. The bottom of the diaphragm I is formed in a zigzag line, as shown in Figs. 2 and 3, and from the lowest points of the zigzag extend downward the outlet-pipes J, which pass through the shell of the smoke-box E and open at their lower outer ends into a mud-drum, J, held transversely under the smokebox E and provided with an outlet-valve, J operated by suitable levers and links, J from the cab of the locomotive, so that when the engineer desires he can open or close said valve J The mud-drum is also provided with removable heads for cleaning the mud-drum whenever desired.

Near the bottom 1 of the water-jacket diaphragm I discharge the pipes K, which extend through the smoke-box E in opposite directions,passingthrough theshell of the smokebox E, and being provided at their outer ends with check-valves K. From the latter extend pipes which lead to a suitable source of watersupplysuch as an injector or pumpcontrolled by the engineer in the cab of the loeomotive. From the upper end of the waterjacket diaphragm I'lead the two pipes L L, which extend downward and discharge into a four-way connection, L connected by the pipe L with the lower end of a water-jacket, N, formed around the stand-pipe G. From the four-way connection L also extends a pipe, If, forward, passing through the front plate, of the smoke-box E, and provided at its outer end with a cap, L he pipe L serves to wash out and fill the boiler whenever desired.

From the upper end of the water-jacket N lead the pipes O O, which pass through the smoke-box E and through the fiue-sheet D into the steam-space B of the boiler A. The inner downwardly-extending end of each pipe 0 is provided with a bell, P, which extends at its lower end to within a short distance of the upper row of lines, 0. The pipes Q (shown in Fig. 1) are the usual steam-supply pipes for the engine cylinders. From the water-jacket N leads a pipe, N, connecting with one of the discharge pipes J, above mentioned.

The operation is as follows: The feed-water necessary to supply the boiler A passes from the injector or pump to the check-valves K and from the latter to the pipes K, to be dis charged into the water-jacket diaphragm I. As

the latter is exposed to the heat from the escaping steam and gases of the fire-box and flues, the water in the same becomes heated to a certain extent, and the heated water in the water-jacket diaphragm I is taken from the top of the latter by the pipes L L, passing through the four'way connection L, the pipe Ii, and into the water-jacket N, surrounding the st and pipe G. The exhaust-steam from the cylinders H H passes up through the standpipe G, heats the same, and also imparts considerable heat to the water contained in the jacket N, surrounding the said stand-pipe G. The water in the water-jacket N is heated to nearly the boiling'point and passes from the upper end of the said jacket N through the iipes 0 into the interior of the boiler A, so that hcfeed-water has nearly the same temperature as the water already in the boiler A. It will be seen that the exterior surface of the jacket N is also exposed to the heat of the waste gases and smoke of the fire-box and fines O, as the said gases and smoke pass from the outside of the water-jacket diaphragm I through the smoke-box E to the smokestaek F, and out of the latter to the open air in the usual manner. The water-jackct diaphragm I and the waterjacket N are always tilled with .water, and consequently the water is not subjected to much motion on account of the starting motion of the locomotive, so that the sediment contained in the water and passing into the water-jacket diaphragm I settles in the zigzag bottom of the latter and passes through the pipes J into the mud-drum J, from which it can be drained off at any time by the engineer in charge of the locomotive whenever the said engineer opens the valve J, whereby the sediment collected in the mu ddrum J passes out through the valve J". If any sediment has collected in the water-jacket N, said sediment will be drained off at the same time through the pipe N,which connects wit-h one of the pipes J, as before mentioned. Thus it will be seen that the feedwater is not only heated to a high degree, but also passes in a purified state into the boiler A, as the sediment contained in the water is drained oil, as aforesaid. Light and foamy sediment, which passes from the watenjacket N through the pipes 0 into the boiler A, is held and accumulates in the hell I of the said pipes 0, so that when the engineer opens the valve J the sudden pressure and reaction from the boiler A will force said light foamy sediment back through the pipe 0 into the waterjaeket N, and from the latter through the pipes Ninto the respective pipe J and into the muddrum J and from the latter through the valve J" to the outside.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. In a feed-water heater for locomotiveboilers, the combination, with a water-jacket diaphragm or heat-deflector held in the smokebox of the boiler and connected with a watersupply, ofa water-jacket su rroundi n g thcstandpipe and connected with the said water-jacket diaphragm and also with the interior of the boiler, substantially as shown and described.

2. In a feed-water heater for locomotiveboilers, the combination, with a water-jacket diaphragm held in the smoke-box of the boiler and connected with the water-supply and provided with a zigzag bottom, of pipes leading from the lower angles of the said zigzag bot tom and extending to the outside of the smoke box, substantially as shown and described.

3. In a feed-water heater for locomotiveboilers, the combination, with a water-jacket diaphragm held in the smoke-box of the boiler and connected with the water-supply, said water-jacket diaphragm being provided with a zigzag bottom, of pipes leading from the low est points of the said zigzag bottom downward and out of the said smoke-box, a mud-drum in which discharge the said pipes, and an outletvalve from the said mud-drum and operated from the cab of the locomotive, substantially as shown and described.

t. In a feed-water heater for locomotiveboilers, the combination, with a water-jacket diaphragm, held in the smoke-box of the boiler and connected with the water-supply, said water-jacket diaphragm being provided with a zigzag bottom, of pipes leading from the lowest points of the said zigzag bottom downward and out of the said smoke-box, a mud-drum in which discharge the said pipes, an outlet-valve from the said mud-drum and operated from the cab of the locomotive, and a water-jacket surrounding the stand-pipe in the smoke-arch and connected with the said wator-jacket diaphragm, and with one of the said pipes extending from the zigzag bottom of the water-jacket diaphragm, substantially as shown and described.

5. In a feed-water heater for locomotiveboilers, the combination, with a water-jacket diaphragm held in the smoke-box of the boiler and connected with the water-supply, said water-jacket diaphragm being provided with a zigzag bottom, of pipes leading from the lowest points of the zigzag bottom downward and out of the said smoke-box, a mud-drum in which discharge the said pipes, an outletvalve held on the said mud-drum and operated from the cab of the locomotive, a waterjacket surrounding the stand -pipe in the smoke-arch and connected with the said waterjacket diaphragm and with one of the said pipes extending from the zigzag bottom of the water-jacket diaphragm, and pipes leading from the said water-jacket to the interior of the said boiler, substantially as shown and described.

6. In a feed-watcr heater for locomotiveboilers, the combination, with a boiler provided with boiler-fines, stand-pipe,and smokebox, of a water-jacket diaphragm held in thesaid smoke-box and exposed to the action of the waste gases and smoke of the said boiler,a water-j aeket formed around the said stand-pipe and connected with the said water-jacket diaphragm, pipes leading from the upper end of the said water-jacket into the interior of the said boiler, and a bell held at the inner end of each of the said pipes, substantially as shown and described.

7. In a feed-water heater'for locomotiveboilers, the combination, with a locomotive- 5 boiler provided with boiler-fines, a smokebox and smoke stack, of a water-jacket diaphragm held in the said smoke-box and exposed to the action of the escaping smoke and gases of the said boiler, said water-jacket dia- IO phragm being provided with a zigzag bottom, pipes leading from the said zigzag bottom to the outside of the said smoke-box, a muddrum into which discharge the said pipes, an outlet-valve held on the said mud-drum and 15 operated from the cab of the locomotive, a

.the said water-jacket and extending into the interior of the said boiler, and bell-shaped funnels formed on the inner ends of the said pipes directly above the said boiler-flues,substantially as shown and described.

J. THOMAS LEE.

\Vitnesscs:

G. S. RICHMOND, O. E. WILSON. 

